Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668433 | Electrodeless fluorescent lamp having an insulative housing arrangement | Steven John Everest | 1997-09-16 |
| 4549251 | Discharge lamps | John M. Chapman | 1985-10-22 |
| 4458301 | Discharge lamps with curved sections and central connections | John M. Chapman | 1984-07-03 |
| D273999 | Fluorescent lamp | John M. Chapman | 1984-05-22 |
| D273809 | Fluorescent lamp | John M. Chapman | 1984-05-08 |
| 4278908 | Heating of dosing capsule | — | 1981-07-14 |